1 ; RUN: opt < %s -instcombine -S | not grep itofp 2 3 define i1 @test1(i8 %A) { 4 %B = sitofp i8 %A to double 5 %C = fcmp ult double %B, 128.0 6 ret i1 %C ; True! 7 } 8 define i1 @test2(i8 %A) { 9 %B = sitofp i8 %A to double 10 %C = fcmp ugt double %B, -128.1 11 ret i1 %C ; True! 12 } 13 14 define i1 @test3(i8 %A) { 15 %B = sitofp i8 %A to double 16 %C = fcmp ule double %B, 127.0 17 ret i1 %C ; true! 18 } 19 20 define i1 @test4(i8 %A) { 21 %B = sitofp i8 %A to double 22 %C = fcmp ult double %B, 127.0 23 ret i1 %C ; A != 127 24 } 25 26 define i32 @test5(i32 %A) { 27 %B = sitofp i32 %A to double 28 %C = fptosi double %B to i32 29 %D = uitofp i32 %C to double 30 %E = fptoui double %D to i32 31 ret i32 %E 32 } 33 34 define i32 @test6(i32 %A) { 35 %B = and i32 %A, 7 ; <i32> [#uses=1] 36 %C = and i32 %A, 32 ; <i32> [#uses=1] 37 %D = sitofp i32 %B to double ; <double> [#uses=1] 38 %E = sitofp i32 %C to double ; <double> [#uses=1] 39 %F = fadd double %D, %E ; <double> [#uses=1] 40 %G = fptosi double %F to i32 ; <i32> [#uses=1] 41 ret i32 %G 42 } 43 44 define i32 @test7(i32 %a) nounwind { 45 %b = sitofp i32 %a to double ; <double> [#uses=1] 46 %c = fptoui double %b to i32 ; <i32> [#uses=1] 47 ret i32 %c 48 } 49 50 define i32 @test8(i32 %a) nounwind { 51 %b = uitofp i32 %a to double ; <double> [#uses=1] 52 %c = fptosi double %b to i32 ; <i32> [#uses=1] 53 ret i32 %c 54 } 55 56
